Sprint's dedicated safe driving app, Drive First, has added two new features. Parenting mode allows parents to install this app on their kids' phones, and puts a lock on it so it can't be uninstalled without a PIN. There's also a new personal feedback mode which keeps a tally on how far you've driven with the app running. Besides that, the overall app has had a few user interface tweaks.

As always, Sprint Drive First automatically locks down your phone when it detects you're moving over 10 miles an hour. Texts are responded to with canned replies, and calls are muted and sent to voicemail.

Any Sprint customers can get downloading at the link above. Any of you parents concerned about how safely your kids are driving? Would this new parenting mode help? How safe of a driver are you?